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CVE-2026-93183

drm/lima: call drm_mm_init() with a valid allocation range

In the Linux kernel, the following vulnerability has been resolved:

drm/lima: call drm_mm_init() with a valid allocation range

lima_vm_create() is currently run before va_start and va_end are set up,
meaning they are both 0. lima_vm_create() runs drm_mm_init() with them
as arguments for the allocator, and if DRM_DEBUG_MM is enabled the
DRM_MM_BUG_ON check in drm_mm_init then fires, as seen here on
exynos4412-odroid-u2:

[    1.736297] ------------[ cut here ]------------
[    1.740370] kernel BUG at drivers/gpu/drm/drm_mm.c:931!
[    1.745574] Internal error: Oops - BUG: 0 [#1] SMP ARM
[    1.750697] Modules linked in:
[    1.753734] CPU: 0 UID: 0 PID: 41 Comm: kworker/u16:1 Not tainted 7.0.10-postmarketos-exynos4 #11 PREEMPT
[    1.763372] Hardware name: Samsung Exynos (Flattened Device Tree)
[    1.769446] Workqueue: events_unbound deferred_probe_work_func
[    1.775261] PC is at drm_mm_init+0x9c/0xa4
[    1.779339] LR is at lima_vm_create+0x144/0x17c
[ ... ]

Fix the issue by moving the lima_vm_create() call after va_start and
va_end are set up.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version a1d2a6339961efc078208dc3b2f006e9e9a8e119
Version < af1f276d50c9d7ebcd25770f358ca503a89d96d7
Status affected
Version a1d2a6339961efc078208dc3b2f006e9e9a8e119
Version < fd6bc5f1d6b54047b06b82bab25a7e21e4b1c95a
Status affected
Version a1d2a6339961efc078208dc3b2f006e9e9a8e119
Version < ad4e908096dff97646f77b04e2e2825225e215f7
Status affected
Version a1d2a6339961efc078208dc3b2f006e9e9a8e119
Version < 788917ba77f5d69bd368c1d176ecceda346a2951
Status affected
Version a1d2a6339961efc078208dc3b2f006e9e9a8e119
Version < 79a3331ee436c8b1454f897d539606c9b5ebdf9f
Status affected
Version a1d2a6339961efc078208dc3b2f006e9e9a8e119
Version < e2a7cee341986cb5b544a8286edc7fb0494c592e
Status affected
Version a1d2a6339961efc078208dc3b2f006e9e9a8e119
Version < e0773ad25a34a49aece176721c466cf214e02222
Status affected
Version a1d2a6339961efc078208dc3b2f006e9e9a8e119
Version < 3b3bce4a692ac60d9f4a341e6b597dd1fd0a28f9
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 5.2
Status affected
Version 0
Version < 5.2
Status unaffected
Version <= 5.10.*
Version 5.10.270
Status unaffected
Version <= 5.15.*
Version 5.15.221
Status unaffected
Version <= 6.1.*
Version 6.1.188
Status unaffected
Version <= 6.6.*
Version 6.6.157
Status unaffected
Version <= 6.12.*
Version 6.12.110
Status unaffected
Version <= 6.18.*
Version 6.18.52
Status unaffected
Version <= 7.2.*
Version 7.2.6
Status unaffected
Version <= *
Version 7.3-rc1
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.21% 0.117
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/af1f276d50c9d7ebcd25770f358ca503a89d96d7
https://git.kernel.org/stable/c/fd6bc5f1d6b54047b06b82bab25a7e21e4b1c95a
https://git.kernel.org/stable/c/ad4e908096dff97646f77b04e2e2825225e215f7
https://git.kernel.org/stable/c/788917ba77f5d69bd368c1d176ecceda346a2951
https://git.kernel.org/stable/c/79a3331ee436c8b1454f897d539606c9b5ebdf9f
https://git.kernel.org/stable/c/e2a7cee341986cb5b544a8286edc7fb0494c592e
https://git.kernel.org/stable/c/e0773ad25a34a49aece176721c466cf214e02222
https://git.kernel.org/stable/c/3b3bce4a692ac60d9f4a341e6b597dd1fd0a28f9